Altitude 2.0 Offroad Carbon Fiber HelmetFeatures: Hand lay-up carbon fiber. On/off shutter closure for airflow control. Fidlock magnetic chinstrap. Camera mount compatible Applied Technologies Perfect fit between helmet eyeport and 509 goggles 509 helmet bag included Meets and complies with Federal Motor Vehicle Safety Standard 218 (FMVSS 218). Weight: Starting at DOT/ECE 1150 grams. Reinvented to ride even harder, the second generation of the bestselling 509 Altitude series unleashes a whole new animal. Leading the charge is the 509 Altitude 2.0 Carbon Fiber Helmet with a new hand lay-up carbon composite construction that's lighter, stronger, and straight-up sleeker than anything before it. For those who like to get aggressive, it includes the Fidlock magnetic strap buckle for easy one-handed operation, a built-in universal camera mount, plus airflow control venting.